Question about cpas and sensor.

[Vonhendon]

Do you have to disconnect the battery when changing these out and should you use OEM parts? Also is these the right parts, Pic's

 

[CaptainXL]

Always disconnect negative battery cable before doing any work on electrical components. It makes sure nothing gets shorted out and also resets the PCM

I would degrease your engine first before replacing any parts. You don't want any sand or crap getting in.

 

[Irishboy02]

I second that. Clean what you can before you start messing with electronics. Also, definitely disconnect your batt. You dont need to take the + and - off, just the - will suffice. It takes a minute and can save you huge headaches, makes sure of not having a short. Electrical gremlins are a PITA (trust me)

 

[Phantom]

Also while your under the hood cleaning and have the batt disconnected, might be a good time to clean the throttle body. Don't know when or if it's been cleaned last.

 

[Vonhendon]

Also while your under the hood cleaning and have the batt disconnected, might be a good time to clean the throttle body. Don't know when or if it's been cleaned last.

I cleaned the TB about 2 months ago,but was going to do it again. What Engine degreaser is a good one?

 

[Phantom]

I cleaned the TB about 2 months ago,but was going to do it again. What Engine degreaser is a good one?

There are a couple of posts on here about engine detailing and what they use. hope that helps.

 

[MAY03LT]

The first pic is the cam position sensor. The AC Delco one is under $30.00 and that's what I used when I replaced mine.
The second pic is the CPAS. I would use the AC Delco one.

I would not disconnect the battery for the replacement of either of those parts.

 

[CaptainXL]

I would not disconnect the battery for the replacement of either of those parts.

You don't need too or you shouldn't? What you said didn't clearly explain your position.

 

[Irishboy02]

I cleaned the TB about 2 months ago,but was going to do it again. What Engine degreaser is a good one?

Personally, iv always used enginebright on the motor. Then on plastics i use WD-40

 

[Wooluf1952]

Since the OP has a 2002, the less often he disconnects the battery, the less of a chance he'll have a problem with the HVAC mode doors.

 

[CaptainXL]

Since the OP has a 2002, the less often he disconnects the battery, the less of a chance he'll have a problem with the HVAC mode doors.

I guess thats one way of looking at it. You could also say that since the OP has a 2002 he going to have an greater chance of things going wrong anyway.

 

[Wooluf1952]

I guess thats one way of looking at it. You could also say that since the OP has a 2002 he going to have an greater chance of things going wrong anyway.

That's true.

It's just that the parts he's changing are on the opposite side of the engine from the battery. So there's no chance of shorting to ground. It seems like tempting fate to disconnect the battery.

I would, however, leave the key out of the ignition. Just to make sure no one turns it on, even to listen to the radio.